1208250990720 has 192 divisors, whose sum is σ = 4193424532440. Its totient is φ = 320564428800.

The previous prime is 1208250990701. The next prime is 1208250990721. The reversal of 1208250990720 is 270990528021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1200497131584 + 7753859136 = 1095672^2 + 88056^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1208250990720² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1208250990721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 602320 + ... + 1667120.

Almost surely, 2^{1208250990720} is an apocalyptic number.

1208250990720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1208250990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096712266220).

1208250990720 is an abundant number, since it is smaller than the sum of its proper divisors (2985173541720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1208250990720 is a wasteful number, since it uses less digits than its factorization.

1208250990720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065023 (or 1065008 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 1208250990720 in words is "one trillion, two hundred eight billion, two hundred fifty million, nine hundred ninety thousand, seven hundred twenty".